Emerson Process Management GmbH & Co. OHG
2-6
X-STREAM XE
Short Form Manual
HASXEE-SFM-HS
05/2017
2.4 Installation - Gas Conditioning
Enclosure purge option
The purge medium (e.g. to minimize CO
2
interference or for enhanced safety when
measuring corrosive or poisonous gases)
• must be dry, clean and free of cor-
rosives or components containing
solvents.
• has to be free of components to be
measured, to minimize cross interfer-
ences.
Its temperature must correspond to the am-
bient temperature of the analyzer, but be at
least within the range 20
…
35 °C (68
…
95 °F).
For safety reasons, consider section 2.3.1
when making use of this option!
We recommend to always purge
the analyzer enclosure, if gases
are supplied, which may harm
analyzer components, if due to
a leak released into the analyzer
enclosure!
Open reference option
In some cases, the measuring cell has an open
reference side, to be supplied with nitrogen.
This nitrogen
• at least should be of quality 5.0, which
means nitrogen of purity ≥ 99.999 %.
If such gas is not available, the substitute
• must be dry, clean and free of corrosives
or components containing solvents.
• has to be free of components to be
measured, to minimize cross interfer-
ences.
In any case, the gas temperature must cor-
respond to the ambient temperature of the
analyzer, but at least be within the range
20
…
35 °C (68
…
95 °F).
Pressure and gas flow must remain within the
values given in the
within this manual.
Perform a calibration each time
the source of this gas (e. g.
bottle) has changed!
